I had the oddest experience this morning. I was driving to work and the radio stations were cutting in and out. Next thing I new "Vol" lit up on the radio and it ran down to zero. I tried turning off the radio and it would not let me. I waited a couple minutes and I could turn it off. I checked to see if the steering wheel controls were jammed, but they were ok. I turned the radio back on but, after a couple minutes it did the same thing. ANy clue what is going on here?